Lewis Short
in-sectātĭo (noun F) : id.
* A pursuing, pursuit (class., but not in Cic. or Caes.).
* Lit.: hostis,Liv. 21, 47, 2.
* Trop., a pursuing with words, a censuring, railing at, deriding, insulting: tanta est hominum insolentia et nostri insectatio, Brut. ap. Ep. Cic. Fam. 11, 1, 2: principum,Liv. 22, 34, 2: studiorum et morum alicujus,Suet. Gramm. 19: insectationibus petere aliquem,Tac. A. 2, 55: fortunae,Quint. 6, 3, 28; 11, 1, 86: quod insectationis genus,id. 5, 7, 6.
Charlton T. Lewis, Charles Short, A Latin Dictionary